Mathematics Middle School

how many lines of symmetry does the quadrilateral below have.
A. 0
B. 1
C. 2
Which of the following are magnitudes for rotational symmetry of the quadrilateral below about the marked point.
A.30
B.90
C.180
D.None of the above

How Many Lines Of Symmetry Does The Quadrilateral Below Have. A. 0B. 1C. 2 Which Of The Following Are

Answers

Answer 1

Answer:

C; A

Step-by-step explanation:

(coming from an 8th grader :)

1. should be A, because on each side of the quadrilateral there are two lines being mirrored.

2. should be C, because the angles are acute and not right or straight. you may be thinking “but there is a straight line” yes, you are right there’s a straight line, but there’s multiple angles consisted in making one whole angle.

Related Questions

A small TV that regularly sells for $89.00 is on sale at a 15% discount. What is the amount of discount?

Answers

Answer:

$13.35

Step-by-step explanation:

To find the amount of discount, multiply the discount rate by the usual price of the small TV.

discount rate * regular price

The discount rate is 15% and the regular price of the small TV is $89.00

15%*$89.00

15%*89

Convert 15% to a decimal by dividing 15 by 100, or moving the decimal place two spots to the left.

15/100=0.15

15.0-->1.5-->0.15

0.15*89

Multiply

13.35

The discount amount is $13.35

So the amount of discount is $13.35

Look at the attached picture

Hope it will help you

Good luck on your assignment

There are 30 marbles in a bag. You randomly choose 20 marbles from the bag. The results are shown in the table. Predict the total number of red marbles.

Color
Blue 6
Red 12
Yellow 2
There are about how many red marbles?

Answers

Answer:

12 because if you add 6 and 12

Step-by-step explanation:

hope it helps uou !!

Answer:

It's 12

Step-by-step explanation:

hope it helps you !!

Find the length of the base of the following pyramid, given the height of the pyramid is 221 meters and the angle of elevation of the base of the pyramid is 62°. Round to the nearest whole number.

An image of a square pyramid is shown with a right triangle embedded inside it. The face is at an incline of 62 degrees. The height is labeled 211, and the corner of the right angle is marked with a letter P.

75 meters
189 meters
235 meters
416 meters

Answers

Answer:I believe it would be answer choice, 235 meters

Step-by-step explanation:

I’m not super good at explain but, the height and incline both go at the right slope when they interact. Have a good day, hope it helps.

The length of the pyramid's base would be:

C). 235 meters

Find the length of the base

Given that,

Height of the pyramid [tex]= 221[/tex]

Elevation/angle of the base [tex]= 62[/tex]°

Employing the trigonometric function,

Tan 62 [tex]= 221/[1/2 base][/tex]

⇒ Base [tex]= (2[/tex] × [tex]221)[/tex][tex]/Tan[/tex][tex]62[/tex]

[tex]= 2[/tex] × 221/[tex]1.88[/tex]

[tex]= 235.10[/tex]

Thus, option C is the correct answer.

Learn more about "Angle" here:

brainly.com/question/15767203

What type of skew does this graph have?

Answers

Answer:

Negative skew; skewed right.

Step-by-step explanation:

It is a negative skew, because the peak of the graph is located towards the left (5- 9, respectively). The skewed is on the right, for the tail stretches out to the right of the graph (10-14 all the way to 25 - 29, respectively).

~

The figure below is a net for a rectangular prism. Side a = 22 inches, side b = 18 inches, and side c = 11 inches. What is the surface area of this figure?
A. 1,430 square inches
B. 1,672 square inches
C. 4,356 square inches
D. 836 square inches

Answers

the answer is b. 1672

please help

This spinner has 6 equal sections. what are the odds in simplest form against spinning blue or yellow?

A) 1:2
B) 2:3
C) 3:2
D) 2:1​

Answers

Answer:

D

Step-by-step explanation:

hope this helps!!! good luck:)

Answer: its C 3:2

Step-by-step explanation: see how it has the word AGAINST that means the opposite of the word FAVOR if the Question was. . .

This spinner has 6 equal sections. what are the odds in simplest form FAVOR spinning blue or yellow? then the Answer would be B 2:3

but sense the Question is. . .

This spinner has 6 equal sections. what are the odds in simplest form AGAINST spinning blue or yellow?  

your Answer is . . .

                                             C) 3 : 2

Have a wonderful day :D

The angular velocity of a fan blade is 6.2 radians per second.


Approximately how many revolutions does the fan blade make in 1.6 minutes?


Enter your answer, rounded to the nearest tenth of a revolution

Answers

Answer:

94.7 revolutions

Step-by-step explanation:

In the question above, we are given the following values for the fan

Angular velocity = 6.2 radians per seconds

Time = 1.6 minutes.

Step 1

We would convert the time given to seconds

1 minute = 60 seconds

1.6 minutes = ?

We cross multiply

1.6 minutes × 60 seconds

= 96 seconds

Step 2

Number of revolutions made by the fan is calculated as :

Angular velocity(rad/s)

× time(seconds)

Number of revolutions = 6.2 radians per seconds × 96 seconds

=595.2 radians

Converting from radians to revolution

1 radian = 0.159155 revolutions

595.2 radians =

Cross multiply

= 595.2 radians × 0.159155 revolutions

= 94.729056 revolutions.

Approximately to the nearest tenth = 94.7 revolutions.

Therefore, the number of revolutions the fan blade makes in 1.6 minutes is 94.7 revolutions.

1.6 minutes is 1.6 x 60 = 96 seconds.

Its angular velocity is 6.2 radians per second:  6.2 radians/second x 96 seconds = 595.2 radians.

One revolution of the fan is one circumference of the fan, which is 2pi radians.

Dividing 595.2 radians by 2pi radians gives us an answer of 94.7 revolutions.

Center (2,8) r=6 plz help

Answers

Answer:

(x-2)^2+(y-8)^2=36

Step-by-step explanation:

Simplify:

a) 6c + 4d - c - 7d =

b) 3x + 5y - x + 2y =

c) 3g + 5h + 4g - 2h =

d) 8t + 3r - 7t - 9r =


Answers

Answer:

a) 5c-3d

b) 2x+7y

c) 7g+3h

d) 1t-6r

hope this helps ;)

Answer:

a) 6c + 4d - c - 7d =  5c -3d

b) 3x + 5y - x + 2y =  2x + 7y

c) 3g + 5h + 4g - 2h =  7g + 3h

d) 8t + 3r - 7t - 9r = t - 6r

Step-by-step explanation:

combine like terms:

a) 6c + 4d - c - 7d =  5c -3d

b) 3x + 5y - x + 2y =  2x + 7y

c) 3g + 5h + 4g - 2h =  7g + 3h

d) 8t + 3r - 7t - 9r = t - 6r

The price of a car is £15400 before it is reduced by 8%.
How much does it cost after the reduction?

Answers

Answer:

14168

Step-by-step explanation:

15400 / 100 x 8 = 1232

1232 = 8%

15400 - 1232 = 14168

Lily wants to buy a new smartphone. She has $500 to spend. List three ways she can get a good deal.

Answers

Answer:

get a coupon find a cheap on or steal it or get a discount

Answer:

She could use coupon deals, she could research what stores have it cheapest, see what deals online has

Drag each description to the correct form of segregation.

Black customers were not

served; students staged sit

ins to protest unfair serving

practices.

People of different races Intimidation and violence

had to sit in different areas; toward different races was

the Freedom Riders

common; Student

protested these rules. || Nonviolent Coordinating

Committee (SNCC) worked

to register black people.

Voting

Dining

Bus Rides

Answers

Answer:

Voting, Dinning, and Bus Rides were are categorized to the right description form of segregation. it is well explained in the explanation section below.

Step-by-step explanation:

Solution:

Voting:

Intimidation and violence towards different races was common;Student Nonviolent Coordinating Committee (SNCC) worked  to register black people.

Dinning:

Black customers were not  served;students staged sit ins to protest unfair serving practices.

Bus Rides:

People of different races had to sit in different areas; the Freedom Riders these rules.

how would you differentiate this problem using the quotient rule?

Answers

rewrite the square root of X as X^ 1/2. Then take the derivative. Since 1/3 is a constant with respect to X you can pull that out. So, you should have
1/3 d/dx [ (2x^2-x^5)/3x^1/2].

Then factor x^2 out of 2x^2-x^5.

Then by using the negative exponent rule you should have

1/3 d/dx [ x^2(2-x^3)x^-1/2 ]

Then multiply x^2 by x ^-1/2 by adding the exponents.

1/3 d/dx [ x^3/2 (2-x^3)]

Then differentiate.

You should get x^1/2 - (3x^7/2)/2.

I hope that helps.

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a certain statistician has an of 122 , what percent of the population has a lower IQ?
A. 47%
B. 93%
C. 22%
D. 99%
E. 7%

Answers

Answer:

B. 93%

Step-by-step explanation:

Find the z-score:

z = (x − μ) / σ

z = (122 − 100) / 15

z = 1.47

Find the probability using a calculator or z-score table.

P(Z < 1.47) = 0.93

help rsm 2.1/x+1 4/5=3/10x

Answers

Answer:

two minus one times .........

The solution to the equation is x = 7, -1.

What is a quadratic equation?

The equation of the form ax² + bx +c is known as a quadratic equation.

The given equation is 2.1/x + 1 (4/5) =(3/10)x.

Simplify the equation as follows:

2.1/x + 1 (4/5) =(3/10)x

2.1/x + 9/5 = (3/10)x

2.1 + (9/5)x = (3/10)x²

21 + 18x = 3x²

3x² - 18x -21 =0

3x² - 21x + 3x -21 =0

3x(x - 7) + 3(x - 7) =0

(x - 7)(3x + 3) =0

x - 7 =0 or 3x + 3 =0

x = 7 or x = -1

Hence, the solution to the equation is x = 7, -1.

Learn more about the quadratic equations:

https://brainly.com/question/17177510

#SPJ2

233 is equal to r more than 48?

Answers

I think it’s equal to .hope that helps

Answer:

R = 152

Step-by-step explanation:

what i did was if it is talking about more than 48 something plus 48 is 200 so

200 - 48 = 152

r = 152

so 200 is 152 more than 48

Hope this helpsBrainliest plzAsk any more math questions if you want

find the output, y, when the input, x, is -5.​

Answers

Answer:

y = -2

Step-by-step explanation:

When x = -5

Go to the blue line

y = -2

Answer:

There are 2 questions with the same question but with a different graph.

This graphs answer is -2.

But the other graph that people are confused about is 7.

Step-by-step explanation:

Hope this helps! :)

select the one answer. (x+5)-4y

Answers

Answer:

B) The sum of x and 5 subtracted by 4 times y.

Step-by-step explanation:

(x + 5) = the sum of x and 5

- = subtracted by

4y = 4 times y

"The sum of x and 5 subtracted by 4 times y).

B) is your answer.

~

Answer:

B/the second one

Step-by-step explanation:

Finding Distances from the Mean
The mean of the data is 44.7. Complete the chart to find the distances from the mean.
Of
Temp (°F)
2938
45
31
50
58
62
Distance
from the
Mean
15.7
6.7
13.7
y
13.3

Answers

Answer:

x = 0.3, y = 5.3, z = 17.3

Step-by-step explanation:

Since given question is incomplete, so here is the complete table for the distance from the mean.

Temp (°F)                              29      38       45    31      50     58     62    

Distance from the mean    15.7    6.7       x    13.7      y     13.3       z

It's given that the mean of the data is 44.7

Since distance from the mean of a data is the absolute value of the difference of data and mean,

Therefore, distance from the mean of the data will be,

x = |44.7 - 45| = 0.3 (absolute value of the difference)

y = |44.7 - 50| = 5.3

z = |44.7 - 62| = 17.3

Answer:

x =   0.3

y =   5.3

z =   17.3

Step-by-step explanation:

Which point is the centroid of the triangle?
Question 5 options:

A)

D

B)

G

C)

F

D)

C

Answers

Answer:

The answer is B) G

Step-by-step explanation:

G is at the center of the triangle. It is a centroid because it is where all the medians meet.

Factor. 125x^3-64y^3

Answers

Answer:

= 5x - 4y

Step-by-step explanation:

125x³- 64y³

= 5x - 4y

Answer:

Hello,

(5x)^3 - (4y)^3

Step-by-step explanation:

125 = 5^3

64 = 4^3

125 x^3 - 64 y^3 = (5x)^3 - (4y)^3

PlEAssE HeLPLL!!!!! LIKE REALLY HELP ME!!

Answers

Answer:

168745

Step-by-step explanation:

times them all together.

Answer:

16875 cm^3

Step-by-step explanation:

V = lwh

45 * 15 * 25 = 16875

For 10 straight days Samantha measure the amount of food that her cat Dewey a recording the results

Answers

Answer:

is there like a table or something to help me with the question

please help i am stuck please
Below are the data collected from two random samples of 100 members of a large travel club regarding the type of vacation they prefer: Sample
Adventur/ Beach/ Cruise/ Ski /
A 6/ 5/ 70/ 19
B 1 6 72 / 21
Which of the following inferences can be made based on the data?
A)Most members prefer a beach vacation.
B) Most members prefer a adventure vacation.
C)More members prefer an adventure vacation and a ski vacation than a cruise vacation.
D)More members prefer a beach vacation and ski vacation than an adventure vacation.

Answers

Answer:

D

Step-by-step explanation:

MORE MEMBERS PREFER A BEACH VACATION AND SKI VACATION THAN AN ADVENTURE VACATION

I need help need this done by tonight!

Answers

Answer:

A corresponds

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

If you notice in the equation there is a + sign. if there is a plus sign that means the line is going up. and since graph a's arrow is pointing up (or to the right side) your answer willl be grph a

Which answer choice shows the number fifty-four and four hundredths written in standard form? A. 54,400 B. 54.04 C. 54.004 D. 54.0004

Answers

Answer:

c

Step-by-step explanation:

giving a lot of pts. Which expression is equivalent to 7(a+2) when a=6

7(6)

9(6)

7(6+2)

7(6+14)

Answers

Answer:

9(6)

Step-by-step explanation:

i just took the test and yea!!!!!!!!

Answer:

D. 7(6)+4

Step-by-step explanation:

I tried the answer above me but it was wrong that's why I got 90/100

but here is the REAL ANSWER

The figure is made of rectangular prisms. What is the volume?

Answers

Answer:

So the first step is to do times the l that is 18 then times the width that is 6 after that times the height that is 12. The other number is from the other side so you have to times the other number too. So the answer will be c.

Step-by-step explanation:

As we the the formula for a rectangular prism is l*w*h

Answer:

2,160cm³

Step-by-step explanation:

Good luck kiddos :)

what is the property for (s + 2) +4​

Answers

Answer:

s+6

Step-by-step explanation:

You just add 2 and 4.

Answer:

Associative

Step-by-step explanation:

(s+2)+4 = s + (2 + 4)

s + 6 = s + 6

Why are the units of area squared? How does this help us remember the formula for area of a circle?

Answers

Answer:

Area is a size measurement of a two-dimensional surface. Those dimensions (x and y) are perpendicular to each other, and thats why it is squared.

Other Questions
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